As well as checkout out the git repo into the
vim/bundle/vim-javascript directory. You can then commit these changes
as follows:

git add .
git ci -m "Added the javascript bundle"

Command-t

The command-t extension require Vim with ruby support, and furthermore, the
ruby code depends on a C extension for extra speed. The usual pathogen
installation proceedure didn't work for me, but I followed these steps to make
it work: